html,
body {
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, #2c3e50 0%, #3498db 100%);
}
.main_body {
  width: 100%;
  height: 100%;
  position: relative;
}
.main_body .userlogin {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 980px;
  height: 500px;
  border-radius: 15px;
  box-shadow: 5px 5px 5px #8aaded;
  background-color: #fff;
}
.main_body .userlogin .title {
  width: 100%;
  height: 70px;
  line-height: 70px;
  text-align: center;
  background-color: #54dead;
  border-radius: 15px 15px 0 0;
  user-select: none;
}
.main_body .userlogin .title h1 {
  color: #fff;
  font-size: 40px;
  letter-spacing: 20px;
}
.main_body .userlogin .login_box {
  width: 100%;
  height: 430px;
}
.main_body .userlogin .login_box .leftBox {
  width: 50%;
  height: 100%;
  text-align: center;
  line-height: 440px;
  user-select: none;
}
.main_body .userlogin .login_box .rightBox {
  width: 50%;
  margin-top: 90px;
}
.main_body .userlogin .login_box .rightBox .pub {
  width: 100%;
  height: 50px;
  padding: 0 30px;
  box-sizing: border-box;
  margin: 25px 0;
}
.main_body .userlogin .login_box .rightBox .pub input {
  width: 100%;
  height: 100%;
  border: 2px solid #ccc;
  border-radius: 10px;
  padding-left: 15px;
  box-sizing: border-box;
  cursor: pointer;
}
.main_body .userlogin .login_box .rightBox .pub input:focus {
  border-color: #3498db;
}
.main_body .userlogin .login_box .rightBox .submit input {
  background-color: #3498db;
  border: 0 none;
  color: #fff;
  font-size: 20px;
  letter-spacing: 10px;
}
.main_body .userlogin .login_box .rightBox .submit input:hover {
  background-color: #54dead;
}
.main_body .userlogin .login_box .rightBox .registBox a {
  text-decoration: underline;
  color: #3498db;
  font-size: 20px;
}
